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Numeric Errors Affecting krb5 package, versions <1.6.dfsg.4~beta1-13

Severity

 Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    5.57% (94th percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-396055
  • published 9 Apr 2009
  • disclosed 9 Apr 2009
Report a new vulnerability Found a mistake?

Introduced: 9 Apr 2009

CVE-2009-0847 Open this link in a new tab
CWE-189 Open this link in a new tab

How to fix?

Upgrade Debian:10 krb5 to version 1.6.dfsg.4~beta1-13 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic.

References

CVSS Scores

version 3.1
Expand this section

NVD

4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low